最近更新到了 macOS Monterey， 半夜总会被屏幕照醒，就觉得很诡异，以前也有过，但都是有通知的时候才会点亮屏幕，现在是没有任何理由的自己点亮，硬件还是那个硬件，那就应该是软件的锅了。
在网上查了一圈，先是找到了苹果官方的教程：https://support.apple.com/zh-cn/guide/mac-help/mchlp2995/mac
写的很详细，但显然是没有任何用处的……
于是继续深挖，还真找到了原因，使用命令 pmset -g log | grep DarkWake 就可以看到，在你睡觉的过程中，你的 Mac 并没有歇着……
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2021-11-09 01:21:32 +1000 DarkWake DarkWake from Deep Idle [CDN] : due to SMC.OutboxNotEmpty smc.70070000 wifibt wlan/ Using AC (Charge:100%) 0 secs 2021-11-09 01:21:32 +1000 Wake DarkWake to FullWake from Deep Idle [CDNVA] : due to HID Activity Using AC (Charge:100%) 2021-11-09 02:00:44 +1000 DarkWake DarkWake from Deep Idle [CDN] : due to SMC.OutboxNotEmpty smc.70070000 wifibt wlan/ Using AC (Charge:100%) 0 secs 2021-11-09 02:00:44 +1000 Wake DarkWake to FullWake from Deep Idle [CDNVA] : due to HID Activity Using AC (Charge:100%) 2021-11-09 03:14:07 +1000 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using AC (Charge:100%) 0 secs 2021-11-09 03:14:07 +1000 Wake DarkWake to FullWake from Deep Idle [CDNVA] : due to HID Activity Using AC (Charge:100%) 2021-11-09 03:53:30 +1000 DarkWake DarkWake from Deep Idle [CDN] : due to SMC.OutboxNotEmpty smc.70070000 wifibt wlan/ Using AC (Charge:100%) 1 secs 2021-11-09 03:53:31 +1000 Wake DarkWake to FullWake from Deep Idle [CDNVA] : due to HID Activity Using AC (Charge:100%) |
看看输出，这几个比较典型，大部分都是这样的，一个 DarkWake， 一个 Wake， 两个仅仅相连，那么问题就出来了， DarkWake 是给电脑在后台唤醒来更新数据的，但不知怎么的，外设被触发，从而导致了全局唤醒。
我的一个笔记本就这样一夜掉电10%。
总之，我并不想要这个功能， 就那个 PowerNap，对我来说，我更希望它能给我多省点电，于是大概解决思路就这么多：关掉网络访问唤醒，关掉 PowerNap……不过问题来了，在 m1 设备上，其实是没有 PowerNap 选项的……（显然，苹果对自己的续航很有信心，但他们忽略了Bug的威力）
在 m1 芯片上，就算是连接电源的界面也没有 PowerNap 选项
于是对于 PowerNap 这个功能来说，我们只能从命令行下手，首先使用 pmset -g 命令查看当前状态，找到 powernap 的值，如果不是 0 ，说明是启用的状态，使用命令 sudo pmset -a powernap 0 关掉它。
同时，还有另外一个 tcpkeepalive ，这个默认应该也不是 0 ，也要关掉，它决定了你的 rmbp 在休眠时是否要保持 tcp 连接——显然，保持的话就需要定时唤醒来联网了…… sudo pmset -a tcpkeepalive 0 ，执行这条命令会导致终端提示：
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Warning: This option disables TCP Keep Alive mechanism when sytem is sleeping. This will result in some critical features like 'Find My Mac' not to function properly. |
大概是说关了的话某些功能会受到限制，其实就是系统功能不能休眠时联网了，我相信真有人偷了你 Mac，它也连不上网的。
总之，两条命令下来，问题应该就解决了，但我找的资料中，还有一条是“关闭优化电源充电”，就那个“Optimized battery charging”，但我不确定这个会不会同样导致唤醒，并且我之前的老 15 寸也确实鼓包了两块电池了，我决定先试试开着它，如果还唤醒，再关掉好了。
总之，就这样，如果你读到这篇文章的时候我没来更新，那说明上述方案是有效的 ：）
参考文献：
- https://discussions.apple.com/thread/252061187
- https://apple.stackexchange.com/questions/253776/macbook-pro-13-with-retina-display-consumes-10-battery-overnight-with-the-lid-c
- https://discussions.apple.com/thread/252276065
本文由 落格博客 原创撰写：落格博客 » 升级 macOS Monterey 后设备休眠半夜频繁唤醒问题
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太强了，感谢大佬的教程，我是遇到了锁屏后，点击下面的叉号，不能立即黑屏而是黑一下屏幕有亮了，这教程很给力！！！
Thanks R0uter for the fast reply.
Yeah, I also was searching for very long time for a fix but nothing really helped out.
Mostly I also have it on the cable and when I know I don´t use it the next few hours I shut it down to save my battery.
Maybe someday a fix from Apple will come but I´m not really sure because I had this issue also under MacOS 12
Thank you anyway 🙂
HEY Router,
it doesn´t worked for me.
I use the current MacOS Version 13.3.1
My PMSet are:
System-wide power settings:
SleepDisabled 0
Currently in use:
standby 1
Sleep On Power Button 1
SleepServices 0
hibernatefile /var/vm/sleepimage
powernap 0
networkoversleep 0
disksleep 10
sleep 1 (sleep prevented by powerd)
hibernatemode 3
ttyskeepawake 0
displaysleep 2
tcpkeepalive 0
lowpowermode 1
womp 0
Overnight I lose around 10% of battery. 🙁
No external devices are connected.
When I use the command: “pmset -g log | grep DarkWake”
I got this answer from the terminal:
2023-04-15 23:02:22 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:81%) 45 secs
2023-04-16 00:31:57 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:79%) 45 secs
2023-04-16 02:07:36 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:77%) 45 secs
2023-04-16 03:13:31 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to NUB.SPMISw3IRQ nub-spmi0.0x02 rtc/Maintenance Using BATT (Charge:75%) 45 secs
2023-04-16 04:48:44 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:75%) 45 secs
2023-04-16 06:24:12 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:73%) 45 secs
2023-04-16 07:59:21 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:71%) 45 secs
2023-04-16 09:34:34 +0200 DarkWake DarkWake from Deep Idle [CDN] : due to AOP.OutboxNotEmpty spu_queue_overflow_ep42/ Using BATT (Charge:70%) 45 secs
Maybe you can help me? 🙂
Kind regards
Thomas
Sry man, I ve done some research for you but no luck. This one
due to AOP.OutboxNotEmptylooks like persist. Some ppl work, but some don’t, really have no idea.For me, now I m using m1 mac so even it still eating my battery, it lasts long enough and now I m more plug it in as a desktop tho 😆
Sry not helping….